Mo Says

[elgavachon]

taken from: viewtopic.php?t=7982" onclick="window.open(this.href);return false;

Let's clarify some things.

1) You can't measure entry angle at the bowling center!

2) Gravity keeps the pins low. Nothing else!

3) For a bowling ball to strike, it must slow down. All balls lose energy from the time they are released. Fact!

4) The key factor to ball motion is when and where the ball loses ball speed!

5) When you're leaving pins in the back row, your ball is not slowing down enough, or you're missing your breakpoint location!

"Nuff said!

[elgavachon]

Taken from: viewtopic.php?t=8096" onclick="window.open(this.href);return false;

According to the USBC award winning Ball Motion study, coverstock is the most important aspect in ball motion. Followed by core dynamics with static weights dragging up the rear. Coverstock means the nature of the coverstock and the surface used. This was settled in 2007.

[JohnP]

Taken from: viewtopic.php?t=8096" onclick="window.open(this.href);return false;

According to the USBC award winning Ball Motion study, coverstock is the most important aspect in ball motion. Followed by core dynamics with static weights dragging up the rear. Coverstock means the nature of the coverstock and the surface used. This was settled in 2007.

I added this one to the Mo Fact Sheet on the wiki too. -- JohnP

[elgavachon]

Taken from:viewtopic.php?t=7982

Hitting the pins too far right (for right handers), or not slowing down enough. The second transition is too late. that's what results in weak 10s.

[elgavachon]

from post #36 viewtopic.php?f=15&t=8065&start=20" onclick="window.open(this.href);return false;

density manipulation is an essential element in creating ball motion when designing a bowling ball.

Now it's time to learn. The densities used in designing bowling balls range between 0.75 g/cc and the USBC max. of 3.7 g/cc. Almost no one uses a density > 2.9 g/cc in manufacturing bowling balls because densities more than that raise the cost exponentially.

[EricHartwell]

from post #4 viewtopic.php?f=13&p=64948#p64948" onclick="window.open(this.href);return false;

[quote="Mo Pinel
The faster the spin time, the quicker the ball responds to friction, coverstocks being equal.[/quote]

[elgavachon]

Why we shouldn't LIFT: viewtopic.php?t=8209" onclick="window.open(this.href);return false;

That's easy! The pins are NOT on the ceiling! They are on the ground. Hit through the ball, not up on the ball. Increase the length of the horizontal vector, not the vertical one. Increasing the length of the "flat spot" maximizes the length of the horizontal vector.

[Binkster]

In response to the question - "what dual angle layout (on an ASYM) will be close to the reaction of a SYM with a MOHOLE?" He said: "70 / 3 / 35 will simulate the MOtion hole layout."

[EricHartwell]

In response to the question - "what dual angle layout (on an ASYM) will be close to the reaction of a SYM with a MOHOLE?" He said: "70 / 3 / 35 will simulate the MOtion hole layout."

viewtopic.php?f=15&t=8440" onclick="window.open(this.href);return false;

I thought it would be best to reference the topic this quote was taken from.

[JohnP]

Taken from: viewtopic.php?f=13&t=7374&start=540" onclick="window.open(this.href);return false;
P. 28, Post #550

I don't suggest MOtion Hole drillings for asymmetrical balls. I suggest using the latest expanded Radical asymmetrical drilling instructions for ALL asyms. They are attached to this post.

download/file.php?id=3915" onclick="window.open(this.href);return false;

[elgavachon]

Outlines of the criteria to get a bowler's proper layout.: viewtopic.php?t=278 (see #9)

1) Determine the sum of the angles by analyzing the bowler's ball speed/rev rate ratio.
2) Determine the angle ratio by analyzing the bowler's axis rotation and axis tilt.
3) Adjust the angle ratio based on the design of the ball.
4) Adjust the numbers for the pattern the bowler wants to use the ball for.
5) Drill the ball and use the surface you choose.
6) Watch the bowler throw the ball and decide the balance hole size and location that will perfect the reaction.
7) Shake the bowler's hand and collect the money knowing you have done the job correctly

also from viewtopic.php?t=8564" onclick="window.open(this.href);return false;

[#1 Choose the pin to PAP distance to determine the resulting flare.
#2 Determine the sums of angles to determine the distance of the 2nd transition (Ball speed to rev rate ratio is the primary factor.
#3 Determine the ratio of angles to determine the shape of ball motion.
#4 Add a balance hole where chosen for layout/needed for reaction.
#5 Change the surface to fine tune the reaction.

[JohnP]

From: viewtopic.php?f=13&t=8698&view=unread#unread" onclick="window.open(this.href);return false;

Note: This tip applys only to symmetrically cored balls. -- JohnP

Placing a balance hole on the VAL 1 1/2" below the midline will cause the PSA to move toward the balance hole reducing the drilling angle. This will result in the symmetrical ball starting to transition sooner. The bigger the hole the sooner the ball will transition.

[elgavachon]

Let's talk issues in plugging:

Taken from: posting.php?mode=quote&f=7&p=69955" onclick="window.open(this.href);return false;


1) Control environment temperature and humidity.
2) Eliminate moisture as much as possible.
3) Use the little caps on the pumps all the time. Moisture control
4) Urethane ball plug is always susceptible to bubbles. CO2 is a by product of the reaction.
5) Stir until plug reaches body temperature.

6) added by ballspinner: Accurately measure the components! Do not rely on the pumps to give an accurate ratio.

[JohnP]

The following is Mo's response to the question: "If the amount flare on any asymmetric with a pin to PAP distance between 2 3/4 and 6 3/4 is the same, then is it safe to say that regardless of that distance it will hook the same amount overall?"

From: viewtopic.php?f=15&t=8813&view=unread#unread" onclick="window.open(this.href);return false;

The Dual Angle System is accurate. People's decision making is NOT always as accurate. The system is only as good as the person making the decision. My track record is pretty legendary. I use the principles that I teach.

Just because the flare is the same doesn't mean the shape is the same. 2 3/4" to 3 3/4" pin to PAP distance results in the ball covering the most # of boards. 3 3/4" to 4 3/4" pin to PAP distance covers less boards. 4 3/4" to 5 3/4" pin to PAP covers the least amount od boards and rolls forward the soonest.

[elgavachon]

Taken from: viewtopic.php?f=6&t=8892" onclick="window.open(this.href);return false;
Breaking down the high flare zone for asyms:

2 3/4" to 3 3/4" pin to PAP distances will cover a lot boards.
3 3/4" to 4 3/4" pin to PAP distances will cover a medium amount of boards.
4 3/4" to 5 3/4" pin to PAP distances will play more direct.
They will all have all the flare will ball will offer before you choose the balance hole location to affect the flare.

[elgavachon]

Same topic (specifying 3" pin to PAP v.s. 5" pin to PAP asymmetrical): viewtopic.php?f=6&t=8892" onclick="window.open(this.href);return false;

Both balls will transition at the same points on the lane. The 3" pin to PAP ball will cover more boards and have a bigger change of direction at the breakpoint. The 5" pin to PAP ball will cover fewer boards and have a smaller change of direction at the breakpoint. That's about the most exact I can be in explaining it. I believe that should be completely understandable.

[elgavachon]

Balance hole question "should you use a smaller diameter deep hole or one that is larger in diameter and maybe not as deep?"
viewtopic.php?t=8904" onclick="window.open(this.href);return false;

Removing inner core material is more effective when altering ball reaction by using a balance hole.

[JohnP]

From:
viewtopic.php?f=13&t=8986&view=unread#unread" onclick="window.open(this.href);return false;

You all have different methods, but they are all inaccurate. Layouts have so much to do with the #s of the drilled ball that all approximations are not accurate. Refer to the latest Radical drilling suggestions. There is a chart on the front page of both the ReaX version 2 and the Yeti drilling suggestions that show the mass properties of the balls drilled with the six different layouts, a tremendous difference. That's reality!

Here's my best suggestion for using the undrilled ball #s to help anticipate ball reaction.

1) Take the min. RG # and add 70% of the total diff to it. That'll give you the approximate RG of the PAP for about 80% of the layouts. The RG of the PAP is the only RG that matters to the motion of the drilled ball.

2) Divide the int. diff. of the undrilled ball by the total diff. of the undrilled ball. That'll give you the diff. ratio. That tells you the potential of the ball to respond to friction.

[JohnP]

From: viewtopic.php?f=15&t=9018&view=unread#unread" onclick="window.open(this.href);return false;

Asyms (> .011" intermediate diff.) will retain tilt longer with pin to PAP distances of 3" or less (dynamic Gimbal effect). Use 1 1/2" as a minimum pin to PAP distance as a guide. The smaller the pin to PAP distance in that range the later the breakpoint because of the reduced flare.

[elgavachon]

from: viewtopic.php?t=8054" onclick="window.open(this.href);return false; (see #7)

Low tilt bowlers usually use more symmetricals than asymmetricals because symmetricals have longer hook zones delaying the ball entering the roll phase. Therefore, it gives them more continuation until the carrydown gets them and they start leaving corner pins. At that point they should go to an asymmetrical because the asym. will respond to the friction faster carrying the ten pin when the symmetrical will not on the carrydown.

The lesson for low tilt bowlers is.......start with your symmetrical until you start leaving corners. Then, switch to your asym. to carry the corner......................